Ding, ding, ding! #3-#5, pulled the spark plugs n looked like they where chewed off!.

Quote Originally Posted by Reptile View Post
Depending on the misfire code ie: P0301, 0302 etc, that will tell you which cylinder went.
Beings that you've had the rear head off, the front is where the problem is. Probably #3 or #5 most likely. Shavings in the oil spell doom no matter what's happened though. I'd even bet by taking the front exhaust mani off it'll tell you which piston lost a skirt.